Metal-planing machine.



C. F. FREDE.

METAL PL'ANING MACHINE. APPucATloN 11110 APR. 13. 1914.

1 ,21 5,5 1 4:. Patented Feb. 13, 1917.

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C. F. FBEDE. METAL PLANING MACHINE. APPLICATION man APR.13.1914.

Ptented Feb. 13", 1917.

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C. F. FREDE.

METAL PLANING MACHINE. APPLICATION FILED APR. I3. Ism.

1,215,514. v Peeented Feb.13,1917.

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CHARLES FREDE, OF ST. LOUIS, IIIISSORI, ASSIGNCR TO COMJIONWELTH STEEL COMPANY, GF ST. LOUIS, MISSOURI, ,Li-CORPORATION OF NEW JERSEY.

METAL-PLANING' MACHINE.

Application filed April 13, "i914,

0 aZZ 'whom it may concern:

'Be it known that I, CHARLES F. Fnnuu, a citizen of the United States, residing at St. Louis, lin'the State of Missouri, have invented a new and useful IImprr'wenient in Metal-Planing Machines, 'of which the followingis a specification.`

My invention yrelates to a metal planing;

machine, and has for itsobject to venablea metallic l surface to vbe ,planed transversely vfrom either side,.or`;fromboth sidesisimultaneously,` of thev machine,I in lieu oflongitudlnallyas inthe ordinaryl manner.- g

-lIt consists in features of ,novelty as ,hereinafter described and Claimed, referencebeinghad tothe accompanying drawing forming partbf this specification, whereon,

FigurefiL is a front elevation of my improved cross c ut metal planing machine-with the electrically operated motors x(omitting the wiring connected therewith) preferably plan thereof (brol{en="away); Fig. 3, a side elevation o f the same looking from :the left; 1 -fig. 4, a detached view to enlarged scale, fof -the center-rail (broken away), showing part ofone of the cutter-heads and combined feed lmechanism-as seen to the left in.' FigJ-lg-fFig.- v5, atop plan of the` same; Fig.v 6, a vertical transversey section therethrough on line 6, A6,- in Fig. 4; `l*`i, 3;.-7,`

a cross-section ,on line 7,7, in Figli.; Fi g 8, a top plan` ofthe center-rail corresponding to Fig. 2, showing a preferable system ofA bed, b the housing, c the center-rail, and rl the platen of my improved cross cut:metal planing machine, the center-rail c being xed to the'guide-blocks c and adjustable vertically therewith on the face of the housing Z) in the usual wellsknown manner (not shown). I

In the face of the center-rail c for its entire length, is formed va recess -f in which is arranged on one -side of the longitudinal zenter of the machine, preferably, a rightianded screw-threaded shaft g, and on the )ther side a left-handed screw-threaded Specification of Letters Patent.

Patented Feb. 13, 1917.

serial No. 831,518.

ings 7L and a common middle bearing h as shown.

0n the 'outer end of the shaft g beyond the corresponding end of the center-rail c is fixed preferably, a spur wheel i which is engaged by a pinion jviiYed on' the shaft c of an electrically operated mot-or Z, and on the outer end of the shaft g is fixed a spur wheelji which is ven,f faged by a pinion j fixed on the shaft 7c of an electrically operated motor lf, the `motors Z, Z, being fixed on the center-rail c and adjns'table'therewith vertically on the housingb.

Immediately over the centerrail c longitudinally and parallel thereto, is'arranged a bar m (see ,particularly- Figs. 4 ,to f6) of' suitable length and cross section (such as invertedl-shape as shown) which is adapted to slide longitudinally inv guides n fixed to the centerrail c,v and from the face of the bar mproject two `dogs o'at a. suitable distance apart,'which' are adjustable xralonga slot p 4formed,longitudinally in the face of the bar m and .held thereto, preferably in the present case, respectively, by afscrewthreaded shank g (Figs. 4t and 5) projecting rearward from" the dog 4o through the slot, p and engaged by a hand-nut g for clamping the dog 0 to vthe bar m .and releasing it therefrom as required. r, r ,are the cu'tterheads one on each sidc'of the longitudinal center of the machine) which with the cutters s, 8, .are carriedfby, and 'adapted to slide along thefa ce of the` centerfrail c, the right-handed Screw-threaded shaft g passing through and engaging in a correspondingly threaded lug t (shown by dotted lines in Figs. l and 3) projecting fromthe rear side of the body portion of the cutter-head r. whereby on the rotation of the shaft g in either direction, the cutter-head r with its cutter s is moved to or from the` longitudinal center of the machine asthe case may be. Similarly,` the left-handed' screw-threaded ,shaft g passes through 4and engages in a lug t projecting from the cutter-head?" for moving the latter with its cutter 8', as in the case of the cutter-head r.

From the rear side of the cutter-head r, preferably at the top, projects a lug u which is adapted to engage the dogs 0 of the bar m as hereinafter more particularly described, and froml the rearsi'de ofthe cutter-head -r projects a similar lug u for enfrom theface ofA the'fbar m and are adjust-l able along a slot 79 formed longitudinally in the face of the bar m' to which they are held by the hand-nut g2 in a similar manner to the dogs 'o before described.

On the platen d beneath the cutter-heads 1*, 1^', is placed the casting v (or other metal. object) to be planed transversely, preferably from both sides simultaneously, in lieu of longitudinally' by the travel of the platen as in the ordinary manner, the longitudinal movement ofthe platen o in the present ease being intermittent and limited to the extent of the feed thereby imparted to the cutters. s sf, {at/ eachstrolre of the cutter-` headsr, 771i n For advancin'gftheplaten cZ to the extent of the required feed asabove mentioned, the bar fm, -is formedtransversely,` preferably at thek top adjacent to the cutter-head r, with aseries of teeth [w which are engaged by a ,.sp'urfwheel fw freely'revoluble'bn a vhorizon- 2 1/ fixed to thecenterrail 0,'and on the spin-v "dlewbetweenfthe wheel andthe bearing y is a ratchet wheel z which is fixed to thespindlei preferably byasetrscrewz, and engaged 'byaratchet pawl 1 fixed at `one end tothe lrean'side of the wheel fwf and adapted at 'its otl 1er end to engage with the teeth of the ratchet wheel e, sothat on rotation of thewheel wf tothe right (as indicated by the] full curved arrow in Figs. 1 and ll) by the f'teeth 'w of the bar m when thel latter is moved longitudinally'to the left (as in-v dicated by the horizontal arrow in Figs. l, 4, and 5,'and hereinafter more particularly referred to), the spindle :u will berotated to the right correspondingly tothe wheels w and ,and thereby 'similarly rotate preferably, a bevel wheel 2 fixed on the rear end of the spindle w, and adaptedto engage in a bevel wheel 3 which is fixed on a horizontalspindle 4 mounted at right angles to the spindle in suitable bearings 5 fixed to and carried: by the. center-rail c, the spindle 4 projecting through an opening 6 (Fig. 3) in the side of the housing b and having fixed thereto at its outer end a bevel wheel 7 which is adapted to engage in a bevel wheel 8 adjustably fixed on an upright shaft 9 for maintaining its engagement with the bevel wheel 7 in whatever position the center-rail c with its appendages as described'may be in the vertical adj ustmentof the guide-blocks e along the housing b.

On the upright shaft 9 which is mounted in suitable bearings 10, 11, fixed to the houstal spindlew whi'ch, is mounted in a bearing' ing 1),-is 'fixed a bevel wheel 12 "which is adapted to'engage in a bevel wheel 13 fixed on a horizontal shaft 14 which extends be low the level of the platen cl to the front end of the bed a and is mounted in suitable bearings 15 and 15 fixed respectively to the housing and bed a. On the shaft 14E at its front end is iixed a bevel wheel 1 6 which is adapted to ,engage ina bevel wheel 17 fixed to the outer end of a horizontal shaft 1S which is mounted at right angles to the shaft 14; in suitable bearings 19 fixed tothe Vbed a the other end of the shaft 18 having a bevel wheel 2O adapted to engage in a bevel lwheel 2lffixed to the outer end of a screw-threaded shaft 22 which extends horizontally the entire length of vthe bed a beneath the platen ai at its longitudinal center, the shaft 22 being mounted inbearings 23 formed, one at each end of the bed a, and passing through and engaging in a correspondingly screw-threaded lug or bracket24r which projects fromI the :underside vof the and thefplaten (Z advanced accordingly .On lthe.; rotationof the vspuryvheel eq. 0f theffeed. :geai -tOhQ left (as .indicatedby the curveddotted arrowy in Figi)l by the;

teethfibY ofthe bar m whenthe latter is moved longitudinally to the right (as indicated by the horizontal dotted arrow in Figs.

1, 4, an'd 5),` the ratchet pawl 1 will ride over or out of engagement with the ratchetv wheel z and thev spindle m be consequently idle or stationary.

In the mechanical operationof the machine as above arranged, without reference to the means (hereinafter particularly described) for electrically operating the Lmotors Z, Z, but assuming them tobe in operation with their shafts lc, c, and pinions j, y, and the spur wheels e', i', with their right and left hand screw shafts g, g, rotating respectively in the directions indicated by the arrows seen in Figs. l, 2, and 3, and assuming the'cutternheads r, r', with their cutters s, s', to be the position shown by full lines in VF 1g. 1, or with the cut@ ters s, s', on the outward-or return stroke of the cutter-heads r, r, just clear of the side of the casting fu, on the continuation of the said stroke the lug u on the cutter-head 1, engaging the left hand dog o of the bar m, will force the latte-r in the corresponding direction (as indicated by the full arrows) and in so doing, its teeth w partially rotating the spur wheel w to the right will thereby cause the feed gears as hereinbefore fully set forth, to advance the platen d with the casting 'v to an extent corresponding to the required lfeed of the cutters s, s', until, onthe completion of the said stroke of the cutter-head 1', the bar m and dogs 0` 1,215,514- BEST AVAILABLE corr are moved .into .the` dotted position .seen .in Figs...4 and 5, when on reversalof the motors Z, Z', the cutter-heads r, r', with their cutters s, s', will be moved simultaneously by the screw shafts g, g', vinward across the casting c, or in the direction of the dotted arrows, toward the longitudinal center of tliefmachine, and-in so.doingthe lug u on the cutterfhead r .willengage the other or right hand dog 0 and force it with the bar m from the dotted-'position seen in Figs. 4, and 5, ,to .its normal position as seen in .full

lines Figs. l, 2, 4, and 5, whereby tlieteeth lw of the bar m, will rotate the spur `wheel f lw' in the .opposite directionv (as indicated by the curveddotted arrow in Fig. 4), or so that theratchetpawll will ride over and out. of engagement. with. the ratchet. wheel e and .thev feed jgears .thereby remain stationar. n

it is to be here noted thatywhen the cutter-heads r, fr', with their cutters s, s', are operated simultaneously i as described, the dogs o are not in use, but are moved along the slot p away from ,and'out of engagement `with the lug u on ythecuttenhead r'. On the other hand when it is desired to use the. cutter-,head r. with its;cutter.r sf for.plan

ing the casting v from the corresponding.-

sidefonly, the dogs o are adjusted for engagement by the lugs u', and the dogs 0 preferably, moved out of engagement with the. lugs u on the cutter-head 'i' which remains idle, the bar m in this case being mofved by the dogs o' so asto feed when the-'cutter s' is clear ofthe casting o and nearing the end of its inner or cutting stroke.

,For automatically,controlling the electric operation of the motors. Z, Z', (Figs. 8 and 9) an arm 25 fixed to and projecting rearwardly from the bar m is coupled at its free end to the corresponding end of the knife blade switch lever 26 which is hinged at its other end to a bracket 27 carried by and insulated from the center-rail 0, the bracket 27 being connected with the electric feed wire 28 and return wire 28 from and to the dynamo (not shown), or other source of electric supply, respectively,' and the switch lever 26as shown by full lines, in enga gement with contacts 29, 30, 31, 32, whereby the electric current passes through contact 29 and its wires, through the ield coil returning to generator through contact through intermediate switch. 34' and contact 32, .wherebythemotors Z, Z', operate to drive the cutter-heads r, r', -in the return direction, and in so doing the bar fm, is moved in the direction of the full arrow seen in Figs. l and 5 and causes the arm 25 to throw the switch lever 26 out of engagement with the contacts 29, 30, 3l, 32, and into engagement with contacts 36, 37, 38, 39, which causes the current to pass through contact 36 vand its wires, field coil 33, und through intermediate switch 34, through field coil 33', returning to generator through contact 38, the current also passesthrough contact 37 and its wires, through armature 35, and through intermediate switch 34', and armature 35', returning to generator through contact 39, and as the current in this case passes through. the armatures 35, 35', in opposite directions to tliatwlien contacts 29, 30, 3l', 32, are engaged, the motors Z, Z', will -be driven in..the.reverse direction and the cutter-heads if', 1", .driven in the contrary direction accordingly.

By disconnecting ythe .ai-m' 25 from .the switch lever 26 and connectingfarm 25' (indicated by dotted lines in Figs. 2- and 8) using dogsov in lieu of dogs o, the electrical operation of the machine may be controlled by the cutter head r', the current flowing through contacts 29, 30, 3l, 32, for operating the return stroke, and through contacts 36', 37', 38', 39', for operating the cutting stroke,`the current passingA from and returning to the generator through wires 282, and 283, respectively.

Either cutter-head r, r', may be Aoperated independently by opening the intermediate switches 34, 34', and connecting either of the arms 25, 25', respectively to theswitch levers 26, 2G', and at the same time using dogs o, or o' as required. A

lf either cutter-head 1a or 'r' is in action alone and it is desired to operate them simultaneously, the intermediate switches 34 and 34' may be closed at any point of the cutting or return stroke of the operating cutter-head, with the idle cutter-head in any position of its travel. i'

To this end it will be noted that, the travel of the cutter-heads 1 and r' is limited in each direction by the bearings Zi and k' respectively, of the right and left handed screwthreaded shafts g and g' (or by any other equivalent means that may be provided for the purpose). If the cutter-head r is operating, and is in the position shown in Fig. 5, having nearly completed its return stroke, the cutter-head r' being in the position shown in Fig. l, having just completed its return stroke, and all the switches in the position on the drawing, except that the intermediate switches 34 and 34' are assumed to be open, and it is desired to operate the cutter-headsv r and r simultaneously, it is only necessary to close the intermediate switches 34 and 34: when electric current will he directed through the proper connections and through the motor Z so as to cause the latter to rotate in a direction to move the cutter-head fr outward or on its return stroke, but as the cutter-head 7'" has already completed its return stroke, its further' movement in thisydirection is stopped by the end hearing l1, (or its equivalent device). In the meantime the cutterhead 9' will continue its return stroke and upon 'reversal of the electric current through switch lever 26, current will be directed through the proper Wires to cause both the motors ZJ to rotate inv a reverse direction or so as to drive the cutter-heads r and "r in a cutting stroke direction. A similar action will :take place no matter in what posi-l tion the idle cutter-head may have stopped,

It is here notedthat, in operating the cutter-heads r, fr', simultaneously they move in opposite directions to eachotherat all times, for effecting which the controlling means are so arranged that, the cutter-heads' Copies of this patent may be obtained for 7", r, cannot be operated simultaneously independent of each other.

I claim,

In a metal planing machine, the comhi- 1 nation with the hed and the platen havinga suitable housing, of a. center-rail arranged above and across the platen and vertically adjustable on the housing, a cutter-head slidable along the center-rail on each side of the longitudinal center ot' the machine and adapted to cut transversely to the platen, motors carried by the center-rail and adapted to reciprocate the cutter-heads respectively, along the centererail, means for electrically controlling the said motors, so that, either of the said cutter-heads may he stopped and started independent of the other, and that, when one cutter-head only is in action and the other is started, the said cutter-heads Will automatically operate in opposite directions.

CHARLES F. FREDE.

' vVVitness'es:

' C. T. VVEs'rnAicn, M. ATTERBURY.

ve cents each, by addressing the Commissioner of Patents, WashingtoinD. C. 

